StrataFrame Forum » StrataFrame Application Framework - V1 » WinForms (How do I?) » Enumerating Object Collections

Enumerating Object Collections

Bill Cunnien — Sat, 29 Dec 2007 07:23:27 GMT

Can someone please confirm that certain collections cannot be enumerated? For example, the SF ListView and any Business Object are not enumerable objects. I am unable to run a foreach statement against these collections. I get an error like this:

foreach statement cannot operate on variables of type 'MicroFour.StrataFrame.UI.Windows.Forms.ListView' because 'MicroFour.StrataFrame.UI.Windows.Forms.ListView' does not contain a public definition for 'GetEnumerator'

Are there others that I may need to be aware of?

Thanks,
Bill

RE: Enumerating Object Collections

Bill Cunnien — Sat, 29 Dec 2007 07:23:27 GMT

[quote][b]Larry Caylor (12/28/2007)[/b][hr] . . . you can certainlly enumerate the ListView.Items collection

For Each loItem As Windows.Forms.ListViewItem In Me.ListView1.Items
MessageBox.Show(loItem.Tag.ToString)
Next

[/quote]

Thanks a bunch for the reply! Happy New Year!!

I have been working too much lately. I failed to actually point to the Items collection--I was just pointing to the list. Silly me. :Whistling: I need coffee.

Thanks,
Bill

RE: Enumerating Object Collections

Larry Caylor — Fri, 28 Dec 2007 18:55:15 GMT

You can enumerate StrataFrame business objectes using the GetEnumerable function. The code would look something like;

For Each loRow As MyBO In Me.MyBO1.GetEnumerable
MessageBox.Show(loRow.cust_LastName)
Next

I'm not clear on what you mean by enumerating the ListView since you can certainlly enumerate the ListView.Items collection

For Each loItem As Windows.Forms.ListViewItem In Me.ListView1.Items
MessageBox.Show(loItem.Tag.ToString)
Next

Where ListView1 is type MicroFour.StrataFrame.UI.Windows.Forms.ListView

-Larry